Sam Biddle

That's really the magic number now, huh? AllThingsD reports that the super-chic chair and bauble site just raised $150 million dollars, bringing its valuation to a billi. “I don’t consider us a success yet," says Fab's co-founder.

Fab hasn't answered any worries over the fact that it's expanding at a very high clip without much to back the hype (or compensate for the fact that it doesn't turn a profit). Expanding into China might help, or it could make an already expensive operation completely unsustainable.

And speaking of unsustainable, Fab's spend-happy co-chief Bradford Shellhammer doesn't seem to be fretting at all. From a Facebook post: